我们已经部署了一个新版本的Flink 1.4版本。 在尝试从旧的1.2.1部署中恢复保存点时,我们尝试还原的所有作业都会出现相同的错误:
org.apache.flink.runtime.execution.SuppressRestartsException: Unrecoverable failure. This suppresses job restarts. Please check the stack trace for the root cause.
at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$1.apply$mcV$sp(JobManager.scala:1360)
at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$1.apply(JobManager.scala:1336)
at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$1.apply(JobManager.scala:1336)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:39)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:415)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.IllegalStateException: Legacy state (from Flink <= 1.1, created through the 'Checkpointed' interface) is no longer supported starting from Flink 1.4. Please rewrite your job to use 'CheckpointedFunction' instead!
at org.apache.flink.util.Preconditions.checkState(Preconditions.java:195)
at org.apache.flink.runtime.checkpoint.savepoint.SavepointV1Serializer.deserializeSubtaskState(SavepointV1Serializer.java:171)
at org.apache.flink.runtime.checkpoint.savepoint.SavepointV1Serializer.deserialize(SavepointV1Serializer.java:96)
at org.apache.flink.runtime.checkpoint.savepoint.SavepointV1Serializer.deserialize(SavepointV1Serializer.java:54)
at org.apache.flink.runtime.checkpoint.savepoint.SavepointStore.loadSavepointWithHandle(SavepointStore.java:278)
at org.apache.flink.runtime.checkpoint.savepoint.SavepointLoader.loadAndValidateSavepoint(SavepointLoader.java:70)
at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.restoreSavepoint(CheckpointCoordinator.java:1141)
at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$1.apply$mcV$sp(JobManager.scala:1350)
... 10 more
错误消息:
从Flink 1.4开始,不再支持旧版状态(来自Flink&lt; = 1.1,通过&#39; Checkpointed&#39;接口创建)。请重写您的工作以使用&#39; CheckpointedFunction&#39;代替!
然而,似乎是错误的,因为我们的其他部署正在运行1.2.1。
对于1.4:https://ci.apache.org/projects/flink/flink-docs-release-1.4/ops/upgrading.html,文档页面仍然没有更新,但似乎并行性在过去一直是一个问题。我尝试过使用与保存点即将到来的工作相同的问题,但仍然存在同样的问题。
关于可能导致此问题以及如何解决问题的任何提示?
谢谢!
答案 0 :(得分:2)
对于1.4.0版本,Flink不再支持从使用Checkpointed
接口的状态恢复。要进行有状态升级,您必须执行以下操作:
Checkpointed
替换为CheckpointedFunction
CheckpointedRestoring
接口以从Checkpointed
保存点CheckpointedRestoring
接口让我知道在迁移工作时是否还有其他问题。
答案 1 :(得分:0)
所以,最后想出了这个问题。
我们开始在Flink 1.1中运行我们的任务,然后将其保存点迁移到1.2.1。
似乎Flink 1.2.1没有对保存点进行任何升级,因此它们仍然具有旧格式,即Flink 1.4不支持的格式。
解决方案是在Flink 1.3中运行我们的任务+保存点,并在那里创建一个新的保存点,它将以新格式保存。这个最终与Flink 1.4兼容:)